diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 4af1e46..869cfae 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -47,6 +47,9 @@ jobs:
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
         run: poetry install --no-root --only main,test
 
+      - name: Install stormpy manually
+        run: poetry run pip install /opt/stormpy
+
       - name: Install pre-commit
         run: pip install pre-commit==${{ env.PRECOMMIT_VERSION }}
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 53fc8ce..b468edc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -47,5 +47,8 @@ jobs:
         if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
         run: poetry install --no-root --only main,test
 
-      - name: Install library
-        run: poetry install --only main,test
+      - name: Install stormpy manually
+        run: poetry run pip install /opt/stormpy
+
+      - name: Run tests
+        run: poetry run pytest